Help - Larger Tires sizes that fit on Stock Setups 285/60or65/R20's. without Rubbing?? Would love some advice and info

[Atretes1]

I came on to do research on the biggest tire for a stock ORP truck and I have so many numbers running around my head. I think im trying to over think this lol.

 

[apl81]

Went through this battle... here you go.

285/65R20 will fit stock air suspension but tight. I downgraded to 275/65R20 and they run nice. I do have the off road group but my riding partners all run 275/65R20 on air ride 19 1500.

Bay Area, California- 2019 RAM 1500 Laramie Crew 4x4, 5'7 Bed, Granite Chrystal, E locker, Black Interior, 5.7 Hemi, 3.92 axle, Level 2 Equip Group, 12in NAV, Advanced Safety Group, Pano Sun Roof, Bed Utility Group, Air suspension, Off Road Group, 20X9 +1 Fuel wheels, 275/65R20 Nitto Ridge Grapplers, Deployable bed step, 33 gallon tank, Ram Box, Trailer break control, Mopar Slush Mats.

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So building almost the same truck and want to add bigger tires w/o new rims, lift, leveling kit, etc. Would the 275/65R20 you went with work on the factory 20" wheels w/o rubbing (in all AR suspension settings)? Would likely want a slightly less aggressive tread if you have a recommendation.

 

[clarkehaven]

Went through this battle... here you go.

285/65R20 will fit stock air suspension but tight. I downgraded to 275/65R20 and they run nice. I do have the off road group but my riding partners all run 275/65R20 on air ride 19 1500.

Bay Area, California- 2019 RAM 1500 Laramie Crew 4x4, 5'7 Bed, Granite Chrystal, E locker, Black Interior, 5.7 Hemi, 3.92 axle, Level 2 Equip Group, 12in NAV, Advanced Safety Group, Pano Sun Roof, Bed Utility Group, Air suspension, Off Road Group, 20X9 +1 Fuel wheels, 275/65R20 Nitto Ridge Grapplers, Deployable bed step, 33 gallon tank, Ram Box, Trailer break control, Mopar Slush Mats.

Sent from my iPhone using Tapatalk

Webbd30.....thanks for sharing your experiences......very helpful but I will ask for a little more info.

I am switching from 22" wheels to factory 20" wheels on my 4x4 Limited (after bending 2 wheels in 10k miles). Looking at 275/65r20 Terra Grapplers (non LT tire) ....based on your experience do you think this will work with factory wheels.....not leveled(yet) . I would value your input.

 

[Webbd30]

most the same truck and want to add bigger tires w/o new rims, lift, leveling kit, etc. Would the 275/65R20 you went with work on the factory 20" wheels w/o rubbing (in all AR suspension settings)? Would likely want a slightly less aggressive tread if you have a recommendatio

That I do not know I know the +1 offset really helps run that large of a tire size.

good luck.

 

[Webbd30]

Webbd30.....thanks for sharing your experiences......very helpful but I will ask for a little more info.

I am switching from 22" wheels to factory 20" wheels on my 4x4 Limited (after bending 2 wheels in 10k miles). Looking at 275/65r20 Terra Grapplers (non LT tire) ....based on your experience do you think this will work with factory wheels.....not leveled(yet) . I would value your input.

I am unsure, I know when I was looking for the best tire size, the +1 offset is what really allows that tire to fill up the wheel well.

the stock offset sticks out much much less and that may create issues.

good luck.

 

[Webbd30]

I came on to do research on the biggest tire for a stock ORP truck and I have so many numbers running around my head. I think im trying to over think this lol.

with a +1 offset you can fit largest 285/65R20

I went with the 275/65 because they were about $300 cheaper for a minimum difference.

 

[clarkehaven]

I am unsure, I know when I was looking for the best tire size, the +1 offset is what really allows that tire to fill up the wheel well.

the stock offset sticks out much much less and that may create issues.

good luck.

]

thanks for your reply......I feel the same ….unsure. Hoping that sticking w/ 275 and not going wider would allow the 34" tire to fit. I may play it safe and go 275/60/20. At least there is a better selection of non-LT tires in that size.

 

[Atretes1]

with a +1 offset you can fit largest 285/65R20

I went with the 275/65 because they were about $300 cheaper for a minimum difference.

Thank you can mud flaps be used with either setup?

 

[Webbd30]

Thank you can mud flaps be used with either setup?

Yes they will, I use to run them but moved away from them because they can damage the truck. As dirt and dust build up it can damage paint under the flap.

 

[Atretes1]

Yes they will, I use to run them but moved away from them because they can damage the truck. As dirt and dust build up it can damage paint under the flap.

I don't even have my truck yet and watched the installation of the OEM splash guards. The first thing I said to myself was that's going to scratch the paint. I was recently looking at WeatherTech splash guards it looks like they would be better with that.

 

[John carlin]

First post! I did 33x12.50 20 on a 0 offset wheel tire guy says the offset is the difference no lift or level

 

[rceagle1a]

OK to extend this a little further I plan to run my stock wheels on my 19 Big Horn I currently have 2.5 leveling spacers but I intend to take them back out, don’t care for the angles on the CV shafts or the upper control arms. My question is this can I run a 295/60R20 or a 305/55R20 with flares, molded flaps, without rubbing without a leveling kit?

 

[rceagle1a]

First post! I did 33x12.50 20 on a 0 offset wheel tire guy says the offset is the difference no lift or level

Do you have air suspension or coil’s

 

[dracktw]

Hey guys this is my 1st truck ever, I feel like the tires are too small, I would like to get some advice on sizing
20–Inch x 9–Inch Cast Aluminum Black Wheels
275/55R20 OWL All Season Tires
Stock suspension/no air lift

 

[mdw3998]

Tiresize.com Enter your setup and you get a list of trucks with same/similar tire size and lifts.

 

[Kratz87]

with a +1 offset you can fit largest 285/65R20

I went with the 275/65 because they were about $300 cheaper for a minimum difference.

Webbd30, thanks for the continuing information on this matter. Through this thread, with all of the replies, you,all have helped me immensely. I have been searching through to find the right tires for the OEM wheels. What I am finding is that the largest tire that will fin my 2019 Limited, air suspension, 4x4, off-road package is the 285/65R20 BUT you all seem to be recommending that I change out the wheels as well to go from the stock +19mm offset to one that has a +1mm offset to fit “just right”. I like the recommendations of the Nittro Ridge Grapplers as well. Everything I am reading is that this is an awesome all around tire.

Two weird questions, if you do not mind, as I am new to the truck scene. First, can you achieve the shift from +19mm offset to +1mm offset on the OEM wheels? Or do you need new wheels to change the offset? Second, and this one is “out of the box” a little, do you know what the largest diameter wheel that will fit in the spare tire well? Will the 285/65R20 set nicely in pace of the stock the 275/55R20 “hole” for the spare tire under the bed?

I really appreciate the advise and thoughts.

 

[BeauxXL1200]

Just ordered Nitto Ridge Grapplers 285/60/r20s to put on my stock Longhorn wheels. Discount tire gave me $75.00 credit per tire for my OEM Bridgestones with 7,474 miles on them. I thought a $300.00 discount was a fair deal. Total out the door price was $1,228.50. Have an appointment Tuesday morning to get them mounted. I’ll post a few pics when they’re on the truck.

 

[mdw3998]

Webbd30, thanks for the continuing information on this matter. Through this thread, with all of the replies, you,all have helped me immensely. I have been searching through to find the right tires for the OEM wheels. What I am finding is that the largest tire that will fin my 2019 Limited, air suspension, 4x4, off-road package is the 285/65R20 BUT you all seem to be recommending that I change out the wheels as well to go from the stock +19mm offset to one that has a +1mm offset to fit “just right”. I like the recommendations of the Nittro Ridge Grapplers as well. Everything I am reading is that this is an awesome all around tire.

Two weird questions, if you do not mind, as I am new to the truck scene. First, can you achieve the shift from +19mm offset to +1mm offset on the OEM wheels? Or do you need new wheels to change the offset? Second, and this one is “out of the box” a little, do you know what the largest diameter wheel that will fit in the spare tire well? Will the 285/65R20 set nicely in pace of the stock the 275/55R20 “hole” for the spare tire under the bed?

I really appreciate the advise and thoughts.

Go to customwheeloffset.com enter your truck, lift, wheel and tire size you want and it will return a database of other trucks with that set up and tell you if it rubs.

 

[BeauxXL1200]

Just had the Nitto Ridge Grappler 285/60/r20s installed. Liking them so far. A slight rub against a piece of plastic wheel liner in the front, but only in reverse and when doing a full lock turn. Not a big deal. A few pics.

 

[Kratz87]

Just had the Nitto Ridge Grappler 285/60/r20s installed. Liking them so far. A slight rub against a piece of plastic wheel liner in the front, but only in reverse and when doing a full lock turn. Not a big deal. A few pics.

That looks great!